450242399 has 8 divisors (see below), whose sum is σ = 477923328. Its totient is φ = 422694400.

The previous prime is 450242369. The next prime is 450242413. The reversal of 450242399 is 993242054.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450242399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450242329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26207 + ... + 39840.

It is an arithmetic number, because the mean of its divisors is an integer number (59740416).

Almost surely, 2^450242399 is an apocalyptic number.

450242399 is a deficient number, since it is larger than the sum of its proper divisors (27680929).

450242399 is a wasteful number, since it uses less digits than its factorization.

450242399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66465.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 450242399 is about 21218.9160656241. The cubic root of 450242399 is about 766.4470022434.

The spelling of 450242399 in words is "four hundred fifty million, two hundred forty-two thousand, three hundred ninety-nine".